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Silk production wastewater treatment method

A technology for producing waste water and treatment methods, which is applied in textile industry waste water treatment, water/sewage treatment, water treatment parameter control, etc. It can solve the problems of high treatment cost, small production volume, and difficulty in popularization and application of recycling methods, and achieves Significant economic and social benefits, reduced processing power consumption, and extended working cycle

Inactive Publication Date: 2021-06-25
GUANGXI HUAJIA SILK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the small amount of high-concentration organic wastewater (pupal lining washing wastewater and wastewater from silk printing and dyeing process), there are not many studies on the application of environmentally friendly treatment processes to meet the standards. At present, coagulation, acid analysis and However, the recovery method is difficult to be popularized and applied in small silk reeling enterprises due to the high processing cost.

Method used

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  • Silk production wastewater treatment method

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Effect test

Embodiment 1

[0041] A treatment method for silk production wastewater is that the silk production wastewater is digested and treated through grids, anaerobic tanks, aerobic contact oxidation tanks and aeration tanks, and then enters a sedimentation tank, and then adds a flocculant for precipitation, and the amount of the flocculant added is 150mg / kg silk production wastewater, and then into the multi-functional biological activated carbon tower, and the effluent enters the clear water pool for recycling or direct discharge in the silk reeling workshop;

[0042] Active bacteria are dropped into the anaerobic pool, and the cultivation method of the active bacteria is to take the sludge and sewage from the anaerobic pool of the existing silk production plant back to the laboratory, and the sludge and sewage volume each account for 50%, and the mixed After uniform stirring to obtain a turbid solution, add 50 grams of medium per liter of turbid solution, divide it into 5 culture bottles, instal...

Embodiment 2

[0052] A treatment method for silk production wastewater is that the silk production wastewater enters the sedimentation tank after being digested and treated by the grid, the anaerobic tank, the aerobic contact oxidation tank and the aeration tank, and then the flocculant is added for precipitation, and the amount of the flocculant added is 175mg / kg silk production wastewater, and then into the multi-functional biological activated carbon tower, and the effluent enters the clear water pool for recycling or direct discharge in the silk reeling workshop;

[0053] Active bacteria are dropped into the anaerobic pool, and the cultivation method of the active bacteria is to take the sludge and sewage from the anaerobic pool of the existing silk production plant back to the laboratory, and the sludge and sewage volume each account for 50%, and the mixed After uniform stirring to obtain a turbid solution, add 75 grams of culture medium per liter of turbid solution, divide it into 5 c...

Embodiment 3

[0063] A treatment method for silk production wastewater is that the silk production wastewater is digested and treated through grids, anaerobic tanks, aerobic contact oxidation tanks and aeration tanks, and then enters a sedimentation tank, and then adds flocculant for precipitation, and the amount of flocculant added is 200mg / kg silk production wastewater, and then into the multi-functional biological activated carbon tower, and the effluent enters the clear water pool for recycling or direct discharge in the silk reeling workshop;

[0064] Active bacteria are dropped into the anaerobic pool, and the cultivation method of the active bacteria is to take the sludge and sewage from the anaerobic pool of the existing silk production plant back to the laboratory, and the sludge and sewage volume each account for 50%, and the mixed After uniform stirring to obtain a turbid solution, add 100 grams of medium per liter of turbid solution, divide it into 5 culture bottles, install a p...

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Abstract

The invention relates to a silk production wastewater treatment method. Silk production wastewater is subjected to digestion treatment through a grating, an anaerobic tank, an aerobic contact oxidation tank and an aeration tank and then enters a sedimentation tank, then a flocculating agent is added for sedimentation, 150-200 mg of the flocculating agent is added for one kilogram of silk production wastewater, then the silk production wastewater enters a multi-functional biological activated carbon tower, and effluent enters a clean water tank to be recycled in a silk reeling workshop or directly discharged; The color value, COD (Chemical Oxygen Demand) and BOD (Biochemical Oxygen Demand) of the effluent treated by the silk production wastewater treatment method reach national standards, so that the wastewater of a silk production plant can be recycled, water resources are saved, and a green development view is met.

Description

technical field [0001] The invention relates to the field of industrial wastewater treatment, in particular to a treatment method for silk production wastewater. Background technique [0002] China is not only a big raw silk production country in the world, but also a big discharge country of silk production wastewater. my country is a big silk producing country, with an annual raw silk output of about 100,000 tons, and 1 ton of raw silk consumes 800 to 1,000 tons of water resources, which means that there are 8,000 to 100,000,000 tons of wastewater in silk production every year, including cocoon cooking wastewater, Silk production wastewater, pupal lining washing wastewater, by-product processing wastewater, etc., and some also include wastewater from the silk printing and dyeing process. These wastewaters are dark in color, smelly, and contain a large amount of pollutants. COD and BOD are particularly high. If they are directly discharged, they will be harmful to the enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/30
CPCC02F9/00C02F3/30C02F3/28C02F1/001C02F1/5245C02F2209/08C02F2305/06C02F2209/02C02F2209/06C02F2209/04C02F2103/30
Inventor 俞金键邓利明万丁玮陈德忠吴东燕
Owner GUANGXI HUAJIA SILK